burkman



(No Model.) 3 Sheets-Sheet I.

Wj BURKMAN.- CLAY RBDUGER AND DISINTEGRATOR. No. 357,973. Patented Feb. 15, 1887.

4 y KMA@ Z y W1 N PETERS. Phmmunmgrapm. wnwingmmnc l (No Model.) 3 Sheets-Sheet 2.

W. BURKMAN.

CLAY REDUGER AND DISINTEGRATOR.

No. 357,973. Patented' Peb. 15, 1887-.

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(No Model.) 3 Sheets Sheet 3.

W. BURKMAN.

CLAY REDUGER AND DISINTEGRATQR.' lNo. 357,973. Patented Feb. 15,1887.l

UNITED STATES PATENT OFFICE.

WALFRID BURKMAN, OF CHICAGO, ILLINOIS, ASSIGNOR TO CHARLES H. FROST, OF SAME PLACE.

CLAY REDUCER AND DISINTEGRATOR.

SPECIFICATION forming part of Letters Patent No. 357,973, dated February l5. 1887. I Application filed July 24, 1886. Serial No. $208,990. (No model.)

To all whom it may concern.-

Be it known that I, WALFRID BUREMAN,

residing at Chicago, in the county of Cook and State of Illinois, and a citizen of the UnitedStates, have invented a new and useful Improvement in Clay Reducers and Disintegrators, of which the following is a full description, reference being had to the accompanying drawings, in which- Figure 1 is a longitudinal vertical section taken at line x m of Fig. 2. 'Ihe principal parts are also taken on section-line x of Fig. 3, but the sectionline in Fig. 2 is deflected for the purpose of showing the striker in this figure. In Fig. I the elevating-buckets and their case (shown in Fig. 3) are omitted. Fig. 2' is a vertical cross-section at line y y of Fig. l. Fig. 3 is a section at line z e of Fig. l.

This invention is an improvement upon a machine for which a patent was granted to me February 24, 1885, No. 312,808. lVhen that machine was put into practical use I found that a portion of the liner particles of the clay accumulated on the inside of the periphery of the case which incloses the disks which carry the disintegrating-pins, being thrown there by centrifugal force, and that such iine clay accumulated in sufficient quantity to clog the machine, so that it became necessary occasionally to stop and clean it by hand. I found, also, that some coarse particles will pass through the machine which ought not to go into the brick. I found, also, that the pins were liable to be broken by pieces of stone or iron, which occasionally pass into the machine with the clay. To obviate these difficulties is the ob- `ject of the present invention, which I accomplish in the manner and bythe means hereinafter described and claimed.

In the drawings, A represents a disk, which is provided with several, concentric rows of pins, a, secured at one end in the disk.

Bis another disk provided with rows of concentric pins a', one end of the pins being secured in the disk. The disk A is permanently secured upon the hollow shaft C, supported in bearings D.

F. is a drivingpulley on the shaft C. The disk B is iirmly secured to a shaft, F, sup- 50 ported in bearings G and provided with a driving-pulley, H.

I is a case inclosing the disks AB and provided with a discharge-opening, J.

IS) is a hopper.

L is a screw-feed, the shaft d of which is supported at one end in a bearing, e, and the other end is supported in the end of the shaft F, so as to revolve independent of the latter and at a different rate of speed.

M is a pulley to drive the screw-feed L.

These parts are all the same as shown and described in my former patent.

f is a scraper secured to the disk A. g is another scraper secured to the disk B. As shown in Fig. 2, there are four such Scrapers secured to each of the disks A B, and they are arranged so that when the disks A B revolve the scrapers will be in close proximity to the interior of the periphery of the case I.

N is an inclined wire screen supported by a suitable frame, which frame is rigidly secured at its upper and lower ends in a case or box, O, connected with the reducer.

h is a shaft, supported, as shown, in bearings upon the under side of the screen-frame.

v5 is an arm or lever rigidly secured to the shaft h, the free end of which arm is provided, as shown, with a piece or head, j, adapted to come in contact with the under side of the wire screen.

l k is an arm or crank upon the shaft h.

Z is a eonnectingrod.

mis a conveyor on a shaft, n. The rod Z is connected at one end to 7c and at the other end to a crank on the shaft n.

o is a spout, into which the coarser particles are delivered by the conveyor m.

p' are buckets, connected, as shown, to a chain, q, driven by sprocket-wheels r, which may be driven in any suitable manner. 9o

s is a spout, into which the buckets p discharge the material which they carry up.

t u are two rollers of small diameter, (preferably not more than six inches in diameter,) supported inthe walls ofthe hopper K. These 9 5 rollers are located near each other, as shown in Fig. 8.

c, Fig. 2, is a deflector.

The disk A is supposed to revolve in the direction indicated by the arrow in Fig. 2, so roo that thetendency is to throw the material' upon the upper end of the screen.

from time to time removed by hand.

P is a conveyer-trough.

w is a chain which drives the conveyer on.

The operation is as follows: The clay to be pulverized is to be fed into the hopper K. The rollers t u, being in motion, will not prevent the passage of the clay to the machine, but will prevent the passage of stones or pieces of iron large enough to injure the machine. The rollers being small, they will not take hold of the stones and pieces of iron, but will simply prevent their passage, and they can be The clay will be carried to the disks and pins by the conveyer L, and it will be finely pulverized by the action of the pins aa. The scrapers f gwill keep the interior of the periphery of the case clean and prevent the accumulation of clay thereon. Pulverized clay will fall upon thescreen N, and the tendency is for the larger particles to fall into and remain in the meshes of the screen and prevent the finer parts from passing through the screen, and I iind that the agitation of the screen in any usual manner will not prevent this. By intermittently striking the under side of the screen the larger particles will be thrown up alittle and off from the screen, and will gradually pass to the lower end of the screen, per mitting the ner particles to pass through it. The coarser particles having fallen into the conveyer-trough I), will be carried by the conveyer and delivered to the spout o, through which they will pass to the buckets p and will be carried up and delivered to the hopper K.

The arm z' or piecej, or both, may be adj usted so that greater or less force can be applied to the under side of the screen. The shaft 71., which carries the arm t', is driven from the conveyer-shaft, as indicated in Fig. 1. This device for agit-ating the screen may be called a striker.77

I have shown the scrapers on both of the disks, those upon the disk B being very short. Scrapers might be used on one of the disks 1cnly, but I think it better to use them upon oth.

The rollers t u in the hopper may be driven in any suitable manner.

What I claim as new, and desire to secure by Letters Patent, is-

I1. One or more scrapers,in combination with the disks A B, pins c a, and case I, substantially as and for the purpose specified.

2. 'Ihe combination, in a clay reducer and disintegrator, of clay-reducing mechanism, an inclined screen located directly below the latter and receiving the reduced clay therefrom, andastriker intermittently striking the screen, substantially as described.

3. The combination, in a clay :reducer and disintegrator, of the disks A B, having pins a a for reducing the clay, the inclined screen located beneath the disks for receiving the reduced clay, and a striker intermittently striking the screen, substantially as described.

WALFRID BURKMA N.

lVitnesses:

E. A. VEsT, HARRY T. J oNEs. 

